Txoj kev xeem afais fab mov transformerNrog multimeter muaj xws li cov kauj ruam hauv qab no:
1. **Insulation test**: siv lub multimeter R × 10k nres, ntsig txog, ntsuas cov tub ntxhais thiab cov thawj, thawj thiab txhua theem nrab, cov tub ntxhais thiab txhua theem nrab, theem nrab windings ntawm tus nqi kuj. Nyob rau hauv ib txwm muaj xwm txheej, lub multimeter pointer yuav tsum taw tes rau txoj hauj lwm infinity. Yog tias qhov qhia tau txawv txav, nws txhais tau hais tias qhov kev ua haujlwm ntawm lub tshuab hluav taws xob rwb thaiv tsev tsis zoo.
2. ** coil on-off detection **: lub multimeter yuav muab tso rau hauv R × 1 thaiv, sim tus nqi kuj ntawm txhua winding. Yog hais tias tus nqi tsis kam ntawm lub winding yog infinite, nws qhia tau hais tias muaj ib tug Circuit Court breaking txhaum nyob rau hauv no winding.
3. ** thawj thiab theem nrab coil kev ntxub ntxaug **: feem ntau, thawj thiab theem nrab pins ntawm lub hwj chim transformer pins ntawm ob sab. Thawj winding ntau cim nrog 220V, thaum lub thib ob winding yog cim nrog cov nqi voltage, xws li 15V, 24V, 35V, thiab lwm yam.. Qhia raws li cov cim no.
4. ** Tsis muaj-load tam sim no nrhiav tau **:
* Direct ntsuas txoj kev: tag nrho cov thib ob windings yuav qhib Circuit Court, lub multimeter yuav muab tso rau hauv AC tam sim no thaiv txoj hauj lwm, series rau hauv thawj winding. Thaum cov thawj winding txuas nrog 220V AC mains, lub multimeter qhia tus nqi ntawm tsis muaj load tam sim no. Tus nqi no yuav tsum tsis txhob ntau tshaj 10% mus rau 20% ntawm tag nrho cov load tam sim no ntawm transformer.
* Indirect ntsuas txoj kev: nyob rau hauv thawj winding ntawm lub transformer nyob rau hauv series nrog ib tug 10/5W resistor, lub thib ob yog tseem tag nrho tsis-load. Lub multimeter yuav raug hu mus rau AC voltage thaiv rau kev ntsuas.
5. ** Kev Ntsuas Kev Ntsuas **: Siv cov iav tiv thaiv ntawm lub tshuab multimeter, xws li RX1 lossis RX10, los ntsuas ob sab ntawm lub tshuab hloov hluav taws xob. Feem ntau, thawj qhov kev tiv thaiv yog qhov loj dua thiab qhov kev tiv thaiv theem nrab yog me dua (qib-down transformer). Rov ntsuas nruab nrab ntawm cov theem pib, uas yuav tsum tsis txhob muaj zog.
6. **induced tam sim no thiab kev sib nrig sib inductance voltage test**: lub transformer thawj coil xaus rau hauv multimeter AC voltage 50-100 volts iav. Nrog ib tug qhuav cell kov lub transformer theem nrab coil xaus. Yog hais tias nyob rau lub sij hawm no lub multimeter koob muaj ib tug muaj zog viav vias, uas qhia tau hais tias qhov induced tam sim no thiab kev sib nrig sib inductance voltage yog ib txwm, ua pov thawj tias lub transformer tsis muaj ib tug luv luv Circuit Court ntawm lem.
Los ntawm kev ua raws li cov kauj ruam no, kev ua haujlwm ntawm afais fab mov transformertuaj yeem soj ntsuam ntau dua los txiav txim nws qhov tsim nyog rau kev siv. Thaum ua qhov kev sim, nws yog ib qho tseem ceeb uas yuav tsum tau xyuam xim rau kev nyab xeeb kom tsis txhob muaj hluav taws xob poob siab thiab lwm yam xwm txheej.
Xav tias dawb hu rau peb kom paub ntau ntxiv txog cov khoom.
